seeking information on CASTLE GAP Tx

seeking information on CASTLE GAP Tx

would like to find out more about CASTLE Gap, am researching family who apparently dissapeared in late 1880 or early 1900 and fled to Bolivia after possibly finding some of the supposed gold treasures that were hidden in caves around Castle Gap.......would like to know if anyone knows about any documentation from folks that lived during that time, that could possibly shed some light on my illusive search........the family that dissapeared was Thomas Jefferson POWELL & his wife Louisa Ambler Johnson POWELL and their children.....would love to hear from anyone who has information on any of the mentioned above, thanks so much